Machine for the manufacture of blown-glass articles.



B. D. GHAMBERLIN. l MACHINE PORTER MANUPAGTUBB 0F BLoWN GLASS ARTICLES.

v APPLICATION FILED MAR. 30, 1912.

Patented Jan.12,1915` 4 SHEETS-SHEET 1.

B. D. CHAMBERLIN.

MACHINE FOR THB MANUPAGTURE 0F BLOWN GLASS ARTICLES.

APPLICATION FILED MAR. 30, 1912.

Patented Jan. 12, 1915.

4 SHEETS-SHEET 2.

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B, D. GHAMBERLIN.

MACHINE FOR THE MANUFAGTUEB OF BLOWN GLASS ARTICLES.

APPLICATION FILED 111111.30, 1912.

1,124,701 Patented 5111.111915.

4 SHEETS-SHBET 3.

B. D. GHAMBBRLIN. MACHINE FOR THE MANUFAGTURB 0F BLOWN GLASS ARTICLES. APPLICATION FILED MAR. 30, 1912. 1,1 24,701. Patented Jan. 12, 1915.

4 SHEETS-SHEET 4.

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are? irren@ BENJAMIN DAY GHAMBERLIN, OF'CORNING, NEW YORK, ASSIGNOR T0 EMPIRE MACHINE COMPANY, Ol? PORTLAND, MAINE, A CORPORATION QF ,"iilfltlll'E.y

MACHINE FOR THE MANUFACTUB-E F BLOWN-GLASS ARTICLES. i

reichten aan fie, reis.

Application filed March 3D, 1912. Serial No. 687,457.

To all 'w71 om z'fmay/ concern Be it known that I, BENJAMIN D. CHAM BERLIN, a citizen of the United States of America, and a resident of Corning, New York, have invented certain new and useful Improvements in Machines for the Manun faoture of Blown-Glass Articles, of which the following is a. specification.

In my prior application filed February 7, ,i

1,911. Serial Number 607,179, I have shown, described and claimed mechanism forl delivering to a preshaped blank, prior to the elongation thereof, a definite volume of blowout air under a definite pressure and of means for holdinr:y for a definite time the pressure so created therein, in connection with means for subsequently admitting blowing air for the purpose of swelling the elongated blank within the mold. in the construction there shown the source of air for molding the .blank is independent and distinct from thi; mechanism for creating the blow-out pressure, but the last named mechanism is in the connection between the source of molding air and the blowpipe.

The invention here disclosed and claimed relates to improvements in the construction 'of the device of my said prior application whereby a pluralitiT of injections ot' air may be made into the blank prior to the admis sion of molding air, this necessitating cer tain cliang'esin the construction of the apparatus o my prior application, as will he hereinafter described and claimed.n

Referring to the accompanying drawings in which corresponding parts are referred to by corresponding marks of reference: Figure l is .a front elevation illustrating a general tvpe of machine to which my invention is adapted. Fig. Q, is a fragmental front elevation of the blowpipe frame, swinging mechanism therefor, and blow-out air mechanism, part of the blow-pipe frame being broken awav for the purpose of illustration, the blow-pipe frame being` in normal position. Fig. 3 is a fragmental side elevation of the mounting of the bloW-pipeframe and the actuating mechanism therefor, the frame being shown in vertical or blowingr position. Fig. 4 is a vertical section thereof with the blow-pipe frame horizontal. Fig. 5 is an enlarged fragmental front elevation, showing the lalow-head and actuating mechanism therefor 4carried yby' 1the blow-pipe {frame-.v

'Figf is an end view Fig, l5.y f' a plan view of air head kof Fig. 5, Fig. 8 is a longitudinal section through the lilou/'mips chuck and blow-out air mechanism; together forming part of the `air head. i

For the purpose of describing the invention forming; the subject matter of this application, have shown diagrammatically in Fig. l a type of machine for use in'connec` tion with which mv invention is applicable, although it should be understood thatiit is not restricted to "this type of machine. As there shown such'inachine comprises a frame 1, having moun'retl in the hearing in the upper part the'reof.'y av tubular trunnion 8, forming part of the blow-pipe frame Il.' lilounted upon the exterior of such hearing' is a dislr having peripheral teeth f, .by which it is driven from a pinion 7. The pim ion 7 is intermittently driven from a suitable source of power, in such manner t iat the disk 5 will, when the parte are in normal position, be rotated through a. part of a revolution and will then be arrested and will then after a period ci? rest he driven through the remaining part of its revolution l accomplishing this intermittent drive oi the y disk as a device therefor is shown in my prior application, Seriai Number fr592,532, filed January 13, i911.

At the base of the machine is located a molding mechanism comprising separable molds 88a and means for dipping the same.r The opening and closing and dipping thereu of is accomplished through cam runs 8 and 9 respectively upon the rear face of the disk 5. it is not neces-serv to describe in detail the mechanism lov which thismav he effected as the same are shown in my said prior ap plication.

For the purpose of causing the rotation of' the disk to oscillate the blow-pipe frame around the pivot' formed by its trunni on. and to arrest its increment at certain desired positions during the rotation of the disk, the machine to which mv invention is herein shown asapplied includes a pair of toggle lever 10 and 11, connected together by the pin l1Q. The outer end .of the linlr y10 is pivoted at 13 rto arm 11i projecting radially from a collar 15 alixedly mounted on the bearing; Q, infront of the dish 5. The outer end yof the link il; is pinoted to a stud 16 on the rear face of the blovpipe iframe e, The

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intermediate of its'length and on itsrear face a roller 17 `contained willbe seen that as the cam run 18 is by the rotation of the disk driven in the direction oflthe arrow inFig. 2 and' moved relatively to the fixed pivot 13 of the toggie'l lever system, the link 10 will be caused to assume different angular positions around the pivot 13,and will thereby impart motion to the lever l1, connected to the blowpipe frame, whereby the latter willfbo'swung yaround the vaxis of the bearing .2. 1The camv run 18 is so shaped that with the-'parts in normal .position the blow-pipe frame is substantially horizontal, and that it will durand will upon the subsequent ,movement of ,theL disk to lcomplete its rotation be tempo` rarlly held in'its vertical position, and will then; by 4a movement reverse to that of thel rotation. of the disk, be swung into lits normal-horizontal position. The time in which the blow-pipe frame is held vertically during the rest of the disk 5 is to give time for the elongation of the'glass on the blow- `pipe, while the time it vis-vertical during L the rotation of the disk corresponds to the period in which the glass is blown in the mold. v

f Mounted on the main frame to one side thereof, isa glass shaping mechanism, preferablyl of the construction shown 1n my other 4application filed February 1, 1912, Se-

rial Number 674,814, and which comprising marvermg surfaces l19, and a gage mold 92,

the latter of whichisadapted to be momentarily projected on the glass on the blowpipe iron to shape they same, the position of such shaping devices being suchthat theblow-pipe comes into coperative' relation t therewith during thelirst tilting movement ofthe blow-pipe frame;

-The blow-pipe frame comprises a hollow casting* 20, with which the trunnion 3 is int'egral, having projecting from one end thereof pipesI 21, 22, which on their outer end carryin'z the air head 23, the opposite end of the blow-pipe frame being provided with a blow-pipe rest 24, in which the blowpipe may rotate.

The blow-.head comprises a casting: 25, carried b y the outer ends of the, pipes 21, 2 2 1n which is contained a cylinder 2G, having. at its inner end a ball bearing 27, by lwhich 1s carried the shell 28 of a chuck.

P'iv'oted Within the chuck shell to move ra- 'dially therein are jaws 29, the outer ends of which. are normally thrown apart by springs 30 contained within the shell 28. Slidably mounted in the inner end of the chuck 4shell is a collar 31, which when projected within the shell will cause the forward ends of the jaws'29 to close 'upon a serrated shoul- 70 der on thel end of the blow-pipe 89 if the latter be located therein. In my prior application, Serial Number 602,432, hereinbefore referred to, I have shown this construction of chuck jaws as Well as mechanism for sliding the collar 31 within the shell for the purpose specified. The chuck shell carries peripheral teeth 34 which mesh with a pinion 35 on a shaft 36. The outer end of this shaft has a bearing in the blow-head cast- 30 ing 25 and carries near on its -inner end a beveled pinion 37, meshinirl with a corresponding,r pinion 38' upon the forward end of a shaft 39, projecting forwardly through the hollow trunnion 3 and driven in any approved manner. v

The rear end of the chuck shell 28 has screwed-therein a rearwardly proj ecting nipple 40. A packing 41 is located in front of such nipple and against it the blow-pipe is 90 seated by the pressure of the jaws 29. A Around the rear end of the nipple is a cup washer 42 which serves as an air tight joint between such revolving nipple and the stationary cylinder 26.

Located on the air head casting 25 is a molding air valve 43, which controls the admission of molding air from the central cavity of the blow-pipe frame to the interior of the cylinder 26, the inlet port in the latter for such molding air being!| shown at 44. The connection between the air valve and central cavityf of the blow-pipe frame is formed by the pipe 21, while the central cavity is itself in communication with a source of air under pressure by means of a fiexible pipe 45. The air valve 43 is actuated to admit molding air into the cylinder 26 at the proper time to swell the glass to its finished form by means of a rod actuated at the proper time by a cam 90 on the rotating disk 5.

Having thus described the general nature of ,a machine to which my invention may be applied, I will now describe in detail those parts of the machine which vare more closely allied with the invention here Sought to be protected.

Mounted on the head of the main frame and in the same plane as the disk 5 is the 120 stationary cam plate 47, which, as shown, is a sector concentric with the main bearing 2, carrying aseries of radially adjustable cams 48, 49, 50, 51 `and 52 and a series of angularly adjustable trip projections 53,54, 55 125 and 56, the rise of the first named series of cams being radial in 'respect to the axspf oscillation of the blow-pipe frame'while the rises of the projections 53 to 56 inclusive are at right angles thereto. 1390 unserm p f 1 united in the outer head of the cylinder 26 is the piston rod 57, the inner end of which is reduced in diameter and carries an ton head is the Washer 63, having a suitable packing 91 on its inner face, and adapted when in contact with the piston headto seal the ports therein. The piston rod has upon' its outer end and upon the outside of the c vlindex' 26 a head 64, provided with a notch 65 lin which a laterally extending finger 66-on the outer end of a rod 67 mounted in the blowhead casting and in bearings on the body of the blow-pipe frame is adapted to engage. The inner end of this rod is provided With a foot block carrying a bearing roller 68, adapted to contact with and be lifted by the cams 48, 49, 50, 5l and 52 and is also provided with a laterally extending arm69 having on the end thereof a roller 7 0 adapted to Contact with the projections 54, 55, and 56 on the fixed cam plate wherebv the rod Will be given an angular motion. The rod has thus two motions, in its bearings, the one longitudinal, which when thev finger 66 thereon is in engagement with the notch 65 in the block 64 on the piston rod 57, retracts the latter, and the other an angular or rotary movement which disengages such finger from the piston rod and ermits the spring to project the latter. he rod 67 is normally projected inwardly by the spring 71 and given such. angular position as will cause its linger 66 to normally engage the notch 65, bv a spring 92 fast to the blow-pipe frame and bearing on the arm 69, and the 'head 64 terminates in a beveled face 72, upon Which the finger 66 will bear and down which it will slide when the rod 67'is subsequently' allowed to drop by the cams 48 to52. f

Pivoted to the uppercend of the cam plate is a tappet 7 3, the upper end of which has a beveled face 74 corresponding generallyto the fixed projections 53 to 56 inclusive upon the cam plate and the lower end of which projects forwardly in the form of a foot 75, the tappet ybeing provided With a heel 76 l`bearing upon 'a .cam 77 upon the disk 5, by

which the tappet will be lifted, this occurring about the time themold-is closed by the rotation of the disk.

I Guided in bearings in the air head `casting I 25 and on the b odv ofthe blow-pipe frame is the rod 78 normally projected inwardly by a spring '79, the outer end lof the --rod having thereon two striker pins 8O coactmgwith a three armed lever 8l pivoted to the air head casting 25. An aperture 82 is formedin the wall of the cylinder 26 and this aperture is adapted to be closed by a disk 83 carried on o ne` arm of the lever 81 and pressed lto its seat by the spring 84. Another arm of this lever 8l carries a pin 85 thereon which engages-in one arm of a bell crank lever 86valso mounted on'the blow head casting 25, the other arm of such lever being adapted at times to coact with a pin 87 on the head 64 of the piston 57, to slightly raise the latter, this being contemporaneous with the closing of the aperture 82\by the disk 83.

It will be noted that the cams 48 and 49 which are lsituated respectively above and below the horizontal diameter drawn through the central pi\'ot\2 are reversed and have interposed between them the bridging piece 83 and that the remaining cams 50, 5l and 52 correspond in their facing to the cam 49. A

vVith the mechanism hereinbefore described and with the parts thereotl in the normahposition as shown in Fig. l, the operation is as i'ollowsz-A blow-pipe with a gather of glass thereon is inserted in the chuck on the blow-pipe frame and the guide thereon, and motion is imparted to the pinion 7 whereby the disk 5 will be set in rotation in the direction of the arrow, Fig. 2. This results in a reverse movement of the blow-pipe frame, whereby .the gathering end of the iron is raised past-the shaping devices and the blow-head is lowered. During this reverse motion of the blow-pipe frame, the cam 48 shoves the rod 67 outwardly, and as the finger 66 thereon is in engagement with the notch-65 on the piston 57, the latter is retracted. At about the time the blow-pipe frame reaches its limit of movement in the direction specified, the trip projection 53 partially rotates the rod 67 and disengages the finger thereon from the notch in the piston and permits the spring 60 to project the latter inwardly.

form a central cavity therein and to clear the'bore ofthe blow-pipe from any glass that may have been forcedtherein by the action -of the gage mold. `The projection of the piston also seats the head 58- on the nipple 40 and seals the end of the blowpipe, trapping the air therein. Upon the direction of rotation of the blow-pipe frame being reversed the roller 68 upon the rod angular movement as will ermitit to snap again intoA the notch 65. pon the continued movement of the blow-pipe frame tol swing. it to vertical position with the air headwup, the rod 67 will be successively lifted by the xed'cams 49, 50 and 51, re-

tracting the piston 57, and will be successrvely released from the piston by the trip projections 54, 5 5, and 56 respectively. The

number `and position of the several fixed cams 49, 50 and 51 and corresponding trip projections 54, 55 and 56 may be varied at will to obtain the desired results but I have found it advisable to employ in addition to the calfn 48 which produces the initial cavity in the blank, three cams 49, 50 and 5l, to produce successive blowing out of the blank prior to the elongation. l have also found it desirable to make the several cams adjustable on the fixed cam plate whereby the distance through which the piston head is retracted the several times may be varied, `thus affording means to control the quantity of air forcedV into the blank at each stroke of the piston.

Prior to the blowpipe assuming its vertical position the rod 67 is shoved outwardly b v the fixed cam 52, and the blow-pipe frame comes to rest in a vertical position with the rod 67 on the cam 52. The rotation of the disk 5 is now arrested to permit the elongation of the blank, and after a proper timetherefor, it is again put in rotation, the blow-pipe frame remaining sta# tionary. The renewed rotation of the disk 5 lifts through the cam 77, the tappet 73, the upper beveled face 74 of which contacts with the roller 70 to rotate the rod 67 to' release the piston 57, whereby air will be forced Within the elongated blank yto swell the same within the mold. The continued rotation of the disk will further raise the tappet 73, whereby the foot 75, will by contacting with the. rod 78, lift'the latter, and will shift the three arm lever 81 to close the aperture 82 in thecylinder and to slightly `Withdraw the piston 57 to unseal the head 58 from the nipple 40, and uncover the ports 62 in the piston 61. The molding air valve 43 is now Aactuated bythe rotation of the disk and the gather is fully blown thereby, afterwhich' the continued rotatidn of the .-disk closes the said valve and restores the ture and simultaneously unseating the head 58 from the nipple 40 effect an uninterrupted communication between the molding air valve and the blow-pipe. l. 4

It should -be further notedthat when the parts are in their normalr position the rod 67 is retracted slightly, whereby the end of opened, so that when the blow-pipe is placed in the blow-pipe frame, with its end in the chuck, the interior of such blow-pipe will be in communication with the external air through the blow-out mechanism, thus pre- -cluding any premature compression of airy within the blow-pipe during the closing of the chuck thereon.

It will be further noted that prior to the introduction of each airv change the interior of the ,blow-pipe is placed in communication with the external air through the nipple 40, andV ports 62, which are opened on the rearward movement of the plunger preparatory to the forcing in of the next change, .and through the aperture 82.

l desire to call attention to the necessity especially in the manufacture of light and delicate articles, such as bulbs for ineandescent electric lights, of lintroducing -a limited and definite quantity of air into the 4the nipple 40, and the ports 62 will be preformed blank and positively holding in I the gather for a short period the pressure so created. The. amount of air introduced into the blow-pipe at this time is relatively small, and a small leakage therefore has the 'which it is controlled, both as close to the" l blow-pipe as possible, as the number of possibly leaky joints is thus reduced.

It will be noted that in the construction shown the source and valve for Ithe blow-out air are both on the blow-pipe frame and im-L mediately adjacent to the end of the blow pipe.` 'Moreover since the valve for releas-v -ing the' blow-out pressure is inthe connection between the source of molding air and the blow-pipe, its use does notprovide any additional point at which the molding air may escape, while the use of a piston pump, such as shown, for delivery directlyT- to the blow-pipe on each stroke the exact quantity of air necessary for the blow-out,- provides for the precise regulation of the air pressure for that purpose.

It will be further noted that the blow-out air introduced into the blank is entirely maa-vof separate and distinct from any air that may be subsequently introduced into the blank to give it the shape of the finished article.

Inasmuch as the claims of this applica- "tion are directed solelyv to the air mecha nisms, I do not by failure to make claims herein directed to other inventive features shown herein, abandon the same. Claims covering certain of such other features are reserved for my other applications Serial Number 491,812, filed April 23, 1909, Serial Number 551,198 tiled March Q3, 1910, and Seilal Number 602,532 tiled January 13, 19

Having thus described my invention, what I claim and desire to secure by Let,- ters Patent is vl5,11. In a glass blowing machine, the combination with a pump, and means for delitf'ering the airwdisplaced by each stroke thereof to ya blank, of means for causing a plurality of successive strokes of the pump, each"`of which is of definite and vpredetermined length, substantially as described.

2. In a glass blowing machine, the combination with a support and a source of air pressure connected therewith, a pump cylinder and a valve for molding 'air interposed in the connection between the air source and the support, the cylinder having a normally open connection with the atmosphere, a piston head in the said cylinder, having ponts therein, means for actuating the piston head to deliver a charge of air to the support and meansfor opening the molding valve and closing the connection between the cylinder and the atmosphere.

3. In a glass blowing machine, the combination with a support and a source of air for molding connected therewith, of a pump cylinder interposed in the connection between the' blow-pipe and air source, and having a communication with the atmosphere, a valve controlling the said opening,

BENJAMIN DAY CHAMBEBLIN,

Witnesses: l

DELPHINE KEAGLE, G. WILLIS Dimm. 

